idahoelkinstructor

I worked up a load for my .300 RUM last year and killed two animals with it. The load consisted of New Remington Brass, Fed 215 Primer, Hodgen Retumbo 101 Grains, and Nosler Accubond 180 Gr. bullet, vel f/s was 3387 (average) and my groups were around 1" to a 1 1/2" Not being one to sit back I want to work up a new load using a 200 Gr. Accubond with both Retumbo and RL 25, also I want to try RL 25 with the 180 gr. I have a Nosler #5 loading manual and it doesn't list either the RL 25 powder or the accubonds. I am looking for a safe starting load for both the 180 gr. and the 200 gr. using RL 25. Thanks

stubblejumper

Using r-25 and 180gr accubonds ,I would probably start my testing at 90gr.My hunting loads use 95gr in one rifle and 96gr in the other.

mossy33oak

Using new remington brass, win mag primers, and 93 gr of H1000 seating my bullets to 3.593 I got these groups with 180 gr accubonds

mossy33oak

grouping has been repeated 7 times with the largest being ~.75 this was shot out of a Savage, no work done to the action or barrel (except mz brake). After posting I realized you wanted loads for RL25, sorry I should have read better, but thought you may wanna try H-1000

Montana Bob

What kind of groups did you get out of Factory Ammo? I got groups just like these with Rem 180GR. Noslers shooting out of a Rem Model 700 SS.
I got the dies when I bought the rifle but didn't want to monkey with perfection. It costs so much to develop a good load these days with the powder and ammo I could not justify the cost. I might just go ahead though because I want to load for my 338 Rum even though it again shoots great with out of the box ammo. I might be able to use the same powder type and save some fun tickets.

bigcountry

Montana, I was the guy who suggested that load. I get like 1.2" groups with factory ammo in my custom gun. Thats 180gr nosler partitions. Never got those types of groups from factory. I don't blame ya for staying with it. I have yet to see it however.

mossy33oak

I shot an entire box of Remington Ultra 180 gr Nosler Partitons when I bought the gun, I couldnt hit a basketball at 100 yrds if I wanted to with them. So I called Bigcountry, and he searched through some of his data, and said "try 93 gr of H1000" so I pressed up 93,94 and 95 after 6 shots of the 93 and could cover all 6 with a golf ball I pulled the rest of the loads and made a whole bunch of the 93's. One side note, the p.o.i switching from the factories to my handloads was 8" higher!!! Sometimes you just get lucky. Also I got lucky and found someone to buy my other box of factory ammo for the same price I paid for it!!

Montana Bob

I forgot to mention that when I bought the 300 it was the first my RUM's and I sent it out to an outfit called Answer Products. They gave it the full accuracy package including freezing the barrel to some god awfull low temp, But the 338 shoots just as good with only the basic accuracy package and trigger adjustments. I guess even a blind pig can find an accorn once in awhile

idahoelkinstructor

mossy33oak, thanks for your input I will have to try the H-1000 as well. Those groups are very good IMHO, what speeds is that load producing?

whiskeysnoot

For a 180 gr. Nosler and ReLoder 25 I started @ 90 gr. and went up to 97 gr. Settled on 95.0 gr.